nichts/modules/system/os/systemd.mod.nix

{ lib, ... }:
let
  inherit (lib.modules) mkForce;
in
{
  config.systemd = {
    # faster startup
    targets.network-online.wantedBy = mkForce [ ]; # Normally ["multi-user.target"]
    services = {
      NetworkManager-wait-online.wantedBy = mkForce [ ]; # Normally ["network-online.target"]
      systemd-udev-settle.enable = false;
    };
  };
}